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Improve compatibility and remove unnecessary fork

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This commit is contained in:
topjohnwu 2017-02-04 17:36:45 +08:00
parent 0cf13f6393
commit f269695d4a
1 changed files with 17 additions and 16 deletions
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33
su.c
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@ -621,7 +621,10 @@ int su_main(int argc, char *argv[]) {
int su_main_nodaemon(int argc, char **argv) {
int ppid = getppid();
fork_for_samsung();
// Only fork when not running in daemon mode (already forked from daemon)
if (! is_daemon)
fork_for_samsung();
// Sanitize all secure environment variables (from linker_environ.c in AOSP linker).
/* The same list than GLibc at this point */
@ -665,14 +668,12 @@ int su_main_nodaemon(int argc, char **argv) {
LOGD("su invoked.");
//Chainfire compatibility
if(argc >= 3 && (
strcmp(argv[1], "-cn") == 0 ||
strcmp(argv[1], "--context") == 0
)) {
argc-=2;
argv+=2;
// Replace -cn with z, for CF compatibility
for (int i = 0; i < argc; ++i) {
if (strcmp(argv[i], "-cn") == 0) {
strcpy(argv[i], "-z");
break;
}
}
struct su_context ctx = {
@ -705,13 +706,13 @@ int su_main_nodaemon(int argc, char **argv) {
char buf[64], *result;
policy_t dballow;
struct option long_opts[] = {
{ "command", required_argument, NULL, 'c' },
{ "help", no_argument, NULL, 'h' },
{ "login", no_argument, NULL, 'l' },
{ "preserve-environment", no_argument, NULL, 'p' },
{ "shell", required_argument, NULL, 's' },
{ "version", no_argument, NULL, 'v' },
{ "context", required_argument, NULL, 'z' },
{ "command", required_argument, NULL, 'c' },
{ "help", no_argument, NULL, 'h' },
{ "login", no_argument, NULL, 'l' },
{ "preserve-environment", no_argument, NULL, 'p' },
{ "shell", required_argument, NULL, 's' },
{ "version", no_argument, NULL, 'v' },
{ "context", required_argument, NULL, 'z' },
{ NULL, 0, NULL, 0 },
};